<template>
  <div>
    <div>
      <el-input style="width: 200px" placeholder="查询用户名" v-model="username"/>
      <el-input style="width: 200px; margin: 0 5px" placeholder="查询姓名" v-model="name"/>
      <el-button type="success" @click="load(1)">查询</el-button>
      <el-button type="warning" @click="reset">重置</el-button>
    </div>
    <div style="margin: 10px">
      <el-button type="primary" plain @click="handleAdd">新增</el-button>
      <el-button type="danger"  plain @click="delBatch">批量删除</el-button>
      <el-button type="info" plain @click="exportData">批量导出</el-button>
      <!--:action="$baseURL + '/user/import'"-->
      <el-upload action="http://localhost:9999/user/import"
                 :headers="{ token: user.token }"
                 :on-success="handleImport"
                 style="display: inline-block; margin-left: 10px"
                 :show-file-list="false">
        <el-button type="primary" plain>批量导入</el-button>
      </el-upload>
    </div>


    <el-table :data="tableData" stripe :header-cell-style="{ backgroundColor: 'aliceblue', color: '#666'}" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center"/>
      <el-table-column label="学号" prop="id" width="70" align="center"/>
      <el-table-column label="学生名" prop="name" align="center"/>
      <el-table-column label="电话" prop="phone" align="center"/>
      <el-table-column label="邮箱" prop="email" align="center"/>
      <el-table-column label="地址" prop="address" align="center"/>
      <el-table-column label="头像" >
        <template v-slot="scope">
          <div style="display: flex; align-items: center">
            <el-image style="width: 50px; height: 50px; border-radius: 50%" v-if="scope.row.avatar"
                      :preview-src-list="[scope.row.avatar]"
                      :src="scope.row.avatar"
            />
          </div>
        </template>
      </el-table-column>
      <el-table-column label="角色" prop="role" align="center"/>
      <el-table-column label="操作" align="center" width="180px">
        <template v-slot="scope">
          <el-button size="mini" type="primary" plain @click="handleEdit(scope.row)">编辑</el-button>
          <el-button size="mini" type="danger" plain @click="del(scope.row.id)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <div style="margin: 10px 0">
      <el-pagination
          background
          @current-change="handleCurrentChange"
          :current-page="pageNum"
          :page-size="pageSize"
          layout="total, prev, pager, next"
          :total="total">
      </el-pagination>
    </div>

    <el-dialog title="用户信息" :visible.sync="formVisible" width="30%">
      <el-form :model="form" label-width="80px" style="margin-right: 20px" :rules="rules" ref="formRef">

        <el-form-item label="用户名" prop="username">
          <el-input v-model="form.username" placeholder="用户名"/>
        </el-form-item>
        <el-form-item label="姓名" prop="name">
          <el-input v-model="form.name" placeholder="姓名"/>
        </el-form-item>
        <el-form-item label="电话" prop="phone">
          <el-input v-model="form.phone" placeholder="电话"/>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="form.email" placeholder="邮箱"/>
        </el-form-item>
        <el-form-item label="地址" prop="address">
          <el-input type="textarea" v-model="form.address" placeholder="地址"/>
        </el-form-item>
        <el-form-item label="角色" prop="role">
          <el-radio-group v-model="form.role">
            <el-radio label="管理员"></el-radio>
            <el-radio label="用户"></el-radio>
          </el-radio-group>
        </el-form-item>
        <el-form-item label="头像">
          <el-upload
              class="avatar-uploader"
              action="http://localhost:9999/file/upload"
              list-type="picture"
              :headers="{ token: user.token }"
              :file-list="form.avatar ? [form.avatar] : []"
              :on-success="handleAvatarSuccess"
          >
            <el-button type="primary">上传头像</el-button>
          </el-upload>
        </el-form-item>

      </el-form>

      <div slot="footer" class="dialog-footer">
        <el-button @click="formVisible = false">取 消</el-button>
        <el-button type="primary" @click="save">确 定</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import * as echarts from 'echarts';
  export default {
    name: "",
    data() {
      return {
        tableData: [],  // 所有数据
        pageNum: 1,  // 当前页
        pageSize: 5,  // 没页显示个数
        username: '',
        name: '',
        total: 0,
        formVisible: false,
        form: {},
        user: JSON.parse(localStorage.getItem('honey-user') || '{}'),
        rules: {
          username: [
            { required: true, message: '请输入账号', trigger: 'blur'},
          ],
        },
        ids: []
      }
    },
    created(){
      this.load()
    },
    methods: {
      handleImport(res, file, fileList) {
        if (res.code === '200') {
          this.$message.success("操作成功")
          this.load(1)
        } else {
          this.$message.error(res.msg)
        }
      },
      exportData() { // 批量导出数据
        /*if (!this.ids.length) { // 没有选择时，全部导出，或者通过搜索条件导出
          window.open(this.$baseURL + '/user/export?token=' + this.user.token
              + "&username=" + this.username + "&name="  + this.name)
        } else {
          let idsStr = this.ids.join(',')
          window.open(this.$baseURL + '/user/export?token=' + this.user.token + "&ids=" + idsStr)
        }*/

        if (!this.ids.length) { // 没有选择时，全部导出，或者通过搜索条件导出
          window.open('http://localhost:9999/user/export?token=' + this.user.token
            + "&username=" + this.username + "&name="  + this.name)
        } else {
          let idsStr = this.ids.join(',')
          window.open('http://localhost:9999/user/export?token=' + this.user.token + "&ids=" + idsStr)
        }
      },
      delBatch() {
        if (!this.ids.length) {
          this.$message.warning("请选择数据")
          return
        }
        this.$confirm("您确认批量删除数据吗？", "确认删除",{type: "warning"}).then(response => {
          this.$request.delete('/user/delete/batch', {data: this.ids} ).then(res => {
            if (res.code === '200') { // 操作成功
              this.$message.success("操作成功")
              this.load(1)
            } else {
              this.$message.error(res.msg)  // 弹出错误信息
            }
          })
        })
      },
      handleSelectionChange(rows) {  // 当前选中的所有数据
        this.ids = rows.map(v => v.id)
      },
      del(id) {
        this.$confirm('确认删除吗？','确认删除',{type: "warning"}).then(response => {
          this.$request.delete('/user/delete/' + id ).then(res => {
            if (res.code === '200') { // 操作成功
              this.$message.success("操作成功")
              this.load(1)
            } else {
              this.$message.error(res.msg)  // 弹出错误信息
            }
          })
        }).catch(() => {})
      },
      handleEdit(row) {  // 编辑数据
        this.form = JSON.parse(JSON.stringify(row)) // 给 form 对象赋值,注意要深拷贝数据
        this.formVisible = true // 打开弹窗
      },
      handleAdd() {  // 新增数据
        this.form = { role: '用户' }  // 新增数据的时候清空数据
        this.formVisible = true // 打开弹窗
      },
      save() { // 保存按钮触发逻辑 触发新增或更新
        this.$refs.formRef.validate((valid) => {
          if (valid) {
            this.$request({
              url: this.form.id ? 'user/update' : 'user/add',
              method: this.form.id ? 'PUT' : 'POST',
              data: this.form
            }).then(res => {
              if (res.code === '200') { // 成功保存
                this.$message.success("保存成功")
                this.load(1)
                this.formVisible = false // 关闭弹窗
              } else {
                this.$message.error(res.msg)  // 弹出错误信息
              }
            })
          }
        })
      },
      reset() {
        this.name = '',
        this.username = '',
        this.load()
      },
      load(pageNum) {
        if (pageNum) this.pageNum = pageNum
        this.$request.get('/user/selectByPage', {
          params: {
            pageNum: this.pageNum,
            pageSize: this.pageSize,
            username: this.username,
            name: this.name
          }
        }).then(res => {
          this.tableData = res.data.records
          this.total = res.data.total
        })
      },
      handleCurrentChange(pageNum) {
        this.load(pageNum)
      },
      handleAvatarSuccess(response, file, fileList) {
        // 将user的头像换成上传图片的链接
        this.form.avatar = response.data
      }
    }
  }
</script>

<style>

</style>
